The two speed adjusting device of the digestive tract stapler includes an stapler body, a knob body rotatably connected with the stapler body, and a screw threaded with the knob body. The screw is inserted into the inner cavity of the stapler body, the front of the screw is connected with the central rod in the inner cavity of the stapler body, and the screw has a connected first thread segment and a second thread segment, The pitch of the first thread segment is greater than that of the second thread segment. It can quickly shorten the distance between the nail bin and the nail base, and then slide the second thread segment relative to the knob body, so that the moving speed of the screw becomes slower when the knob is turned, which is conducive to the operation of the digestive tract.
The adjusting knob of the digestive tract stapler includes a knob body, which is rotatably connected with the stapler body, and the knob body is threaded with a screw; The knob body is provided with radial bulges that are radially enlarged, and there are at least two radial bulges. The radial bulge makes the knob butterfly shaped. When using it, if you let your fingers push the radial bulge, you can directly obtain the torque to make the knob rotate, which can easily compress the human tissue to the predetermined thickness, and there is almost no friction between your fingers and the radial bulge, which effectively prevents the damage of the latex gloves worn by the operator.
The stapling nail of the digestive tract stapler consists of a nail crown and a nail leg in a roughly U shape. The nail leg has a bending part. The upper part of the bending part is the upper part of the nail leg, and the lower part of the bending part is the lower part of the nail leg. The lower part of the nail leg bends inward at the bending part relative to the upper part of the nail leg. The length of the nail leg of the nail leg is 4.84 mm -4.92 mm. The height of the nail leg of the anastomotic nail can be formed normally. After forming, the nail leg bends at the bending part, which improves the probability of standard forming.
The linear cutting stapler comprises a handle body, a push knife, a nail bin seat and a nail butting seat. The handle body is provided with a push button for controlling the push knife, the handle body is rotationally connected with a cam, and the cam is provided with a hook part. The side of the cam is provided with a safety mechanism. When the safety mechanism is in a locked state, the hook is hooked on the push button, and the cam is fixed relative to the handle body; When the safety mechanism is in the unlocked state, the hook part releases the push button. When the safety mechanism is locked, the cam is fixed relative to the handle body, and the push button cannot move forward, so as to prevent the push knife from being pushed too early when the position of the instrument is not adjusted.
The circular cutting stapler comprises a nail seat sleeve and a nail butting seat, in which a sliding rod sleeve is arranged, on which a sliding rod is connected, and the sliding rod is inserted in the sliding rod sleeve. The sliding rod is provided with a first rotation stop plane, and the inner wall of the sliding rod sleeve is provided with a second rotation stop plane, and the two rotation stop planes fit together. One part of the slide bar and the slide bar sleeve is provided with a guide rib along the axial direction of the slide bar, and the other part is provided with a guide groove along the axial direction of the slide bar, and the guide rib is inserted in the guide groove. Through the cooperation of the guide rib and the guide groove, the positioning between the sliding rod and the nail seat sleeve is accurate, that is, the positioning between the nail seat sleeve and the nail seat is accurate, so as to ensure the correct molding of the sewing nail.
Operation method of stapler
The use method of the stapler is explained by intestinal anastomosis. The proximal intestine of the anastomosis is sutured with a purse, placed in the nail seat and tightened. The stapler is inserted from the far end, pierced out of the central puncture device of the stapler, connected with the central rod of the proximal stapler against the nail seat, rotated close to the distal and proximal intestinal wall, and the distance between the stapler against the nail seat and the base is adjusted according to the thickness of the intestinal wall, Generally, it is 1.5 ~ 2.5cm or the hand rotation is tight (there is an tightness indicator on the handle) to open the fuse;
Squeeze the closure anastomosis wrench firmly, and hearing the "click" sound means that the cutting anastomosis is completed. Do not exit the stapler temporarily. Check whether the anastomosis is satisfactory and whether there are other tissues such as mesentery embedded in it. After corresponding treatment, loosen the stapler and gently pull it out from the distal end to check whether the distal and proximal bowel resection ring is complete.
Precautions for stapler
(1) Before operation, check whether the scale is aligned with the 0 scale, whether the assembly is correct, and whether the push piece and tantalum nail are missing. Plastic washers shall be installed in the needle holder.
(2) The broken end of the bowel to be anastomosed should be fully free and stripped for at least 2 cm.
(3) The needle distance of purse string suture is not more than 0.5cm, and the margin is 2 ~ 3mm. Too much tissue is easy to be embedded in the anastomosis, which hinders the anastomosis. Be careful not to omit the mucosa.
(4) Adjust the spacing according to the thickness of the intestinal wall, with 1 ~ 2 cm as the appropriate.
(5) Check the stomach, esophagus and other adjacent tissues before firing to prevent them from being pinched into the anastomosis.
(6) The cutting shall be fast, and the final pressure shall be applied to make the seam nail into a "B" shape, so as to strive for success at one time. If you think it is not accurate, you can re cut it again.
(7) Exit the stapler gently, and check whether the cut tissue is a complete ring.
Post time: Jul-06-2022
